B: 2
If it's right plz give brainliest lol <3
A compound is when two or more elements are joined together. The compound that is created with two hydrogens and one oxygen is h2o or water.
B) oxygen, because oxygen is the only element that is in both chemical formulas.
zero because its not going anywhere its stationary
hope this helped ^_^
Iron (III) chloride catalyzes the decomposition of hydrogen peroxide because the decomposition of hydrogen peroxide is usually inhibited by the presence of ions such as phosphate ions in solution. The iron ions that would result from the dissolution of iron (III) chloride have a charge of 3+ and would bond with the -3 charged phosphate ions, creating a non-charged FePO4 molecule and removing the decomposition inhibitor from the solution. Potassium iodide and potassium chloride both are more strongly bonded than a transition metal compound and would lack the necessary charged iron ion when added to hydrogen peroxide.
